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Diffstat (limited to 'cddl/contrib/dtracetoolkit/Examples/errinfo_example.txt')
| -rw-r--r-- | cddl/contrib/dtracetoolkit/Examples/errinfo_example.txt | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/cddl/contrib/dtracetoolkit/Examples/errinfo_example.txt b/cddl/contrib/dtracetoolkit/Examples/errinfo_example.txt new file mode 100644 index 0000000..1dcb28d --- /dev/null +++ b/cddl/contrib/dtracetoolkit/Examples/errinfo_example.txt @@ -0,0 +1,90 @@ +This is an example of the errinfo program, which prints details on syscall +failures. + +By default it "snoops" syscall failures and prints their details, + + # ./errinfo + EXEC SYSCALL ERR DESC + wnck-applet read 11 Resource temporarily unavailable + Xorg read 11 Resource temporarily unavailable + nautilus read 11 Resource temporarily unavailable + Xorg read 11 Resource temporarily unavailable + dsdm read 11 Resource temporarily unavailable + Xorg read 11 Resource temporarily unavailable + Xorg pollsys 4 interrupted system call + mozilla-bin lwp_park 62 timer expired + gnome-netstatus- ioctl 12 Not enough core + mozilla-bin lwp_park 62 timer expired + Xorg read 11 Resource temporarily unavailable + mozilla-bin lwp_park 62 timer expired + [...] + +which is useful to see these events live, but can scroll off the screen +somewhat rapidly.. so, + + + +The "-c" option will count the number of errors. Hit Ctrl-C to stop the +sample. For example, + +# ./errinfo -c +Tracing... Hit Ctrl-C to end. +^C + EXEC SYSCALL ERR COUNT DESC + nscd fcntl 22 1 Invalid argument + xscreensaver read 11 1 Resource temporarily unavailable + inetd lwp_park 62 1 timer expired + svc.startd lwp_park 62 1 timer expired + svc.configd lwp_park 62 1 timer expired + ttymon ioctl 25 1 Inappropriate ioctl for device +gnome-netstatus- ioctl 12 2 Not enough core + mozilla-bin lwp_kill 3 2 No such process + mozilla-bin connect 150 5 operation now in progress + svc.startd portfs 62 8 timer expired + java_vm lwp_cond_wait 62 8 timer expired + soffice.bin read 11 9 Resource temporarily unavailable + gnome-terminal read 11 23 Resource temporarily unavailable + mozilla-bin recv 11 26 Resource temporarily unavailable + nautilus read 11 26 Resource temporarily unavailable +gnome-settings-d read 11 26 Resource temporarily unavailable + gnome-smproxy read 11 34 Resource temporarily unavailable + gnome-panel read 11 42 Resource temporarily unavailable + dsdm read 11 112 Resource temporarily unavailable + metacity read 11 128 Resource temporarily unavailable + mozilla-bin lwp_park 62 133 timer expired + Xorg pollsys 4 147 interrupted system call + wnck-applet read 11 179 Resource temporarily unavailable + mozilla-bin read 11 258 Resource temporarily unavailable + Xorg read 11 1707 Resource temporarily unavailable + +Ok, so Xorg has received 1707 of the same type of error for the syscall read(). + + + +The "-n" option lets us match on one type of process only. In the following +we match processes that have the name "mozilla-bin", + +# ./errinfo -c -n mozilla-bin +Tracing... Hit Ctrl-C to end. +^C + EXEC SYSCALL ERR COUNT DESC + mozilla-bin getpeername 134 1 Socket is not connected + mozilla-bin recv 11 2 Resource temporarily unavailable + mozilla-bin lwp_kill 3 2 No such process + mozilla-bin connect 150 5 operation now in progress + mozilla-bin lwp_park 62 207 timer expired + mozilla-bin read 11 396 Resource temporarily unavailable + + + +The "-p" option lets us examine one PID only. The following example examines +PID 1119, + +# ./errinfo -c -p 1119 +Tracing... Hit Ctrl-C to end. +^C + EXEC SYSCALL ERR COUNT DESC + Xorg pollsys 4 47 interrupted system call + Xorg read 11 669 Resource temporarily unavailable + + |
